Die-bearing disk



(No ModeL) M. M. SHELLABERGER.

DIE BEARING DISK.

Patented Aug. 20; 18 89.

' j/vmwz 072 444.4444 54 0046 WITNESSES Q UNITED STATES PATENT OFFICE.

MICHAEL M. SHELLABERGER, OF BEAVER FALLS, PENNSYLVANIA.

DIE-BEARING DISK.

SPECIFICATION forming part of Letters Patent No. 409,309, dated August20, 1889. Application filed June 24, 1889. $erial Ila-315,340. (N0model.)

To aZZ whom it may concern:

Be it known that I, MICHAEL M. SHELLA- BERGER, a citizen of the UnitedStates, residing at Beaver Falls, in the county of Beaver and State ofPennsylvania, have invented certain new and useful Improvements in Die-Bearing Disks and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this specification.

My invention relates to improvements in dies for crimper-disks such asare employed in fence-pickct-erimping machines and other machines of alike character, and it has special relation tocrimper-disks such as areemployed in a recent application of mine, Serial No. 313,97l, filed June12, 1889; and it has for its object to provide means whereby the wear ofthe dies may be compensated for by successive adjustments thereof, thusobviating the inconvenience and expense of continually replacing thedisks.

In my improved die-bearing disks the dies are formed independent of thedisk, and are attached thereto by means which enable them to be adjustedor replaced at will to compensate for wear.

In the drawings forming a part of this applieation, my improvement isillustrated in connection with the mechanism described in my said priorapplication, Figure 1 being a top plan view, partlyin section, of twoopposing disks embodying my improvements, arranged on opposite sides ofan intermediate die-carrier provided with female dies to mesh with themale dies of the disks; Fig. 2, a similar view of aslightly-modifiedform of the dies; Fig. 3, a transverse sectional viewof the disk 011 theline a; 00 of Fig. 1; Fig. i,asimilar view on the line a: a: of Fig. 2;Fig. 5, a detail perspective view of one of the block-dies, and Fig. 6 asimilar view of one of the male dies.

The die-bearing disks A A, which are shown arranged on opposite sides ofthe die-carrier B, are provided at their peripheries with annular orperipheral recesses or seats 0, having abrupt annular shoulders D attheir Linner edges. In these seats or recesses are fitted removableblocledies E E, as shown in Figs.

1 and 3, the..same having plain inclined faces 6, as shown in thedrawings, or irregular faces, according to the design of the picketwhich they are designed to form, and in the intervals between saidblock-dies are arranged the projecting male dies F F, having rounded orabrupt ends, as preferred. The male dies project beyond the outer facesof the blockdies, and they are parallel-sided, as shown, whereas theblock-dies are provided with con,- vergent sides, which coincide withradii of the disks. The dies hear at their rear or inner ends againstthe shoulder D, or againstwashers cl cl, as shown in Fig. l, which areinterposed between their rear or inner ends and the shoulder, saidwashers being applied as the outer ends of the male dies wear and arerefaced or reground. The block-dies are secured rigidly in place on thedisk by means of bolts or screws G, which are engaged in registeringperforations in the disk and dies, and the male dies are locked in placeby means of small set-screws II H, which are mounted in a covering-plateI, and bear at their lower ends on the said dies. This covering-plate isplaced 011 the upper sides of the block and male dies and bears evenlythereon, .and is secured firmly to the block-dies by the screws or boltsG, which also extend through registering perforations therein. In Fig. 1the covering-plate of one of the disks is shown removed, as when thedies are being adjusted or removed.

In the modified form which is shown in Figs. 2 and et the block-dies andmale dies are formed integral with each other, and the die-plate K,which embraces the said dies, is secured in the peripheral recess orseat in the disk by means of bolts or screws G G, as above described.

The female dies L are carried by the diecarrier B, and obviously mustconform accurately to the dies on the die-bearing disks, from which theyare separated a distance sufficient to allow a wire or rod of thedesired thickness for the proposed picket to pass between their opposingfaces, and thereby receive the impression of the dies.

The material of which the block-dies are formed is or may be cast-iron,as the wear thereon is slight; but the male dies mustbe ofhighly-tempered steel in order to withstand for any length of time thegreat wear thereon, and when the same become worn so that they do notproperly fit the female dies on the diecarrier they should be regroundand then adjusted outward the proper distance to com pensate for thereduction in their length by the wearing and grinding, washers d ,dbeing introduced between the inner ends and the shoulder D to hold themat the desired adjustment.

It will be observed that the strain on the dies is directly inwardtoward the center of the disk, or in alignment with the radii of thelatter, and therefore I have found the setscrews H H amply sufficient toretain the male dies in position.

From the above it will be seen that the I greater portion of the lengthof the dies may 5 specified.

2. The combination, with a disk bearing stationary block-dies arrangedat intervals to form spaces having parallel sides, of the parallel-sidedmale dies fitting in said spaces and engaged by set-screws,substantially as specified.

3. The combination, with a disk provided with a peripheral seat orrecess and a peripheral shoulder adjacent thereto, of alternateblock-dies having convergent sides, and male dies having parallel sidesfitting in said seat or recess and bearing at their inner ends againstsaid shoulder, substantially as specified.

4. The combination, with die-bearing disks provided with peripheralseats or recesses, of the block-dies fitting in said seats or recessesand secured by screws or bolts G, the male dies fitting between theblock-dies, the covering-plate arranged on the upper sides of the blockand male dies and secured in place by the bolts or screws G, and theset-screws mounted in the said plate and engaging the male dies,substantially as specified.

5. The combination,with a die-bearing disk, of the block-dies fitting ina peripheral seat or recess therein, the adjustable male dies fittingbetween said block-dies, and the covering-plate secured to theblock-dies and carrying set-screws to engage and lock the male dies inposition, substantially as specified.

In testimony whereof I atfiX mysignature in presence of two witnesses. H

MICHAEL M. SHELLABERGER.

Vitnesses:

J. F. MERRIMAN, WILLIAM C. GALTON.

